Tin pulling mechanism

Abstract

The utility model belongs to the technical field of automatic welding, and particularly relates to a tin pulling mechanism which comprises an axial moving unit, and the moving end of the axial moving unit is connected with a tin pulling part. The tin pulling part comprises a first vertical plate fixedly connected to the moving end of the axial moving unit, a second air cylinder, a sliding rail, a sliding base fixedly connected to the sliding rail and a first air cylinder clamping jaw fixedly connected to one side of the sliding base, wherein the second air cylinder and the sliding rail are fixedly connected to one side of the first vertical plate, and the telescopic end of the second air cylinder is fixedly connected with one side of the sliding base. The tin wire waste remaining in the first air cylinder clamping jaw can be clamped through the second air cylinder clamping jaw, after clamping, the third air cylinder stretches out and can drive the second air cylinder clamping jaw to move, the second air cylinder clamping jaw drives the waste to move to the position above the waste recycling opening, clamping of the waste is cancelled, and the waste falls into the waste recycling opening; and the waste does not fall on the workpiece, so that the situation that the waste directly falls on the workpiece to cause poor welding and short circuit can be avoided, and the situation that the waste remains in the first air cylinder clamping jaw to affect the next clamping action of the first air cylinder clamping jaw can also be avoided.

Description

Technical Field

[0001] This application relates to the field of automated welding technology, specifically a tin pulling mechanism. Background Art

[0002] As the most commonly used welding material in the electronic production industry, solder wire is not only used for manual welding, but also plays a crucial role in the process of automated welding. In an automated welding device, a tin pulling mechanism is used to pull the solder wire to move and achieve automated welding.

[0003] In order to solve the problems of cumbersome control and poor stability of the existing tin pulling mechanism, the prior art (Chinese utility model with publication number CN103567670A) discloses a solder wire pulling device that uses a cylinder to control the whole process, with a simple control structure and stable operation; it ensures that the length of each section of solder wire is consistent. However, during the operation of automated welding, generally, after the clamping piece clamps the solder wire, the cylinder pulls the solder wire to move, and then heats the solder wire for welding. However, the part of the solder wire clamped by the clamping piece will not be melted. When the clamping piece opens for the reset action after welding is completed, the solder wire waste remaining in the clamping piece may fall from the clamping piece onto the workpiece, resulting in poor welding, short circuit, equipment damage, and increased production costs, etc., or the solder wire waste remaining in the clamping piece still adheres to the clamping piece without falling, and the remaining solder wire will interfere with the normal closing and clamping actions of the clamping piece, resulting in insecure or inaccurate clamping, thereby affecting the positioning and movement of the solder wire for the next welding. Summary of the Utility Model

[0004] The purpose of this application is to provide a tin pulling mechanism to solve the technical problems raised in the above background art.

[0005] To achieve the above purpose, this application provides the following technical solution: A tin pulling mechanism includes an axial movement unit, and a tin pulling part is connected to the moving end of the axial movement unit. The tin pulling part includes a first vertical plate fixedly connected to the moving end of the axial movement unit, a second cylinder and a slide rail fixedly connected to one side of the first vertical plate, a slide seat fixedly connected to the slide rail, and a first cylinder jaw fixedly connected to one side of the slide seat. The telescopic end of the second cylinder is fixedly connected to one side of the slide seat;

[0006] A waste transfer unit is connected to one side of the first vertical plate. The waste transfer unit includes a third cylinder fixedly connected to one side of the first vertical plate, a push plate fixedly connected to the telescopic end of the third cylinder, a slide plate slidably connected to the upper end of the third cylinder, and a second cylinder jaw fixedly connected to the upper end of the slide plate. The upper end of the push plate is fixedly connected to the lower end of the slide plate.

[0007] In one embodiment, the axial movement unit includes a support plate, two guide rails symmetrically fixed to the upper end of the support plate, two sliders slidably connected to the two guide rails respectively, a mounting plate fixed to the upper ends of the two sliders, and a cylinder 1 fixed to the upper end of the support plate, and the telescopic end of the cylinder 1 is fixedly connected to one side of the mounting plate.

[0008] In one embodiment, a waste recycling port is provided at the lower end of the support plate.

[0009] In one embodiment, a feeding unit is fixedly connected to one side of the vertical plate 1, and the feeding unit includes a vertical plate 2 fixedly connected to one side of the vertical plate 1, a motor fixedly connected to one side of the vertical plate 2, a driving wheel rotatably connected to one side of the vertical plate 2 and fixedly connected to the output shaft of the motor, a guide wheel and a winding wheel rotatably connected to one side of the vertical plate 2, and a wire guide frame fixedly connected to one side of the vertical plate 2.

[0010] In one embodiment, a pressure wheel is connected to one side of the vertical plate 2, and a tension adjustment part is connected to one side of the vertical plate 2.

[0011] Compared with the prior art, the beneficial effects of the present application are as follows:

[0012] In the present application, by providing a waste transfer unit, the cylinder 3 can push the sliding plate and the cylinder jaw 2 to move. The cylinder jaw 2 can clamp the tin wire waste remaining in the cylinder jaw 1. After clamping, the cylinder 3 extends to drive the cylinder jaw 2 to move, so that the cylinder jaw 2 drives the waste to move above the waste recycling port, and releases the clamping of the waste to make the waste fall into the waste recycling port. The falling waste will not fall on the workpiece, which can avoid the situation of poor welding and short circuit caused by the waste directly falling on the workpiece, and can also avoid the waste remaining in the cylinder jaw 1 from affecting the next clamping action of the cylinder jaw 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 is a schematic diagram of the structure of the waste transfer unit of the present application;

[0015] Figure 3 is a schematic diagram of the structure of the feeding unit of the present application.

[0016] In the figure: 1. Scrap recycling port; 2. Axial movement unit; 21. Support plate; 22. Slide block; 23. Cylinder 1; 24. Mounting plate; 25. Guide rail; 3. Tin pulling part; 31. Vertical plate 1; 32. Cylinder 2; 33. Slide seat; 34. Slide rail; 35. Cylinder jaw 1; 4. Scrap transfer unit; 41. Cylinder 3; 42. Pushing plate; 43. Slide plate; 44. Cylinder jaw 2; 5. Feeding unit; 51. Vertical plate 2; 52. Motor; 53. Reel; 54. Driving wheel; 55. Pressing wheel; 56. Guide wheel; 57. Tension adjustment part; 58. Lead frame. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0019] Embodiment:

[0020] Please refer to Figures 1-3 , the present application provides a technical solution: a tin pulling mechanism, including an axial movement unit 2, a tin pulling part 3 is connected to the moving end of the axial movement unit 2, and the tin pulling part 3 includes a vertical plate 1 31 fixedly connected to the moving end of the axial movement unit 2, a cylinder 2 32 fixedly connected to one side of the vertical plate 1 31 and a slide rail 34, a slide seat 33 fixedly connected to the slide rail 34, a cylinder jaw 1 35 fixedly connected to one side of the slide seat 33, and the telescopic end of the cylinder 2 32 is fixedly connected to one side of the slide seat 33. One end of the tin wire can be clamped by the cylinder jaw 1 35. After the cylinder jaw 1 35 clamps one end of the tin wire, control the cylinder 2 32 to work. When the cylinder 2 32 extends, it can drive the slide seat 33 and the cylinder jaw 1 35 to move to the right, so as to stretch the tin wire and facilitate the tin melting welding of the welding equipment;

[0021] The axial movement unit 2 includes a support plate 21, two guide rails 25 symmetrically fixed to the upper end of the support plate 21, two sliders 22 slidably connected to the two guide rails 25 respectively, a mounting plate 24 fixed to the upper ends of the two sliders 22, and a first cylinder 23 fixed to the upper end of the support plate 21. The telescopic end of the first cylinder 23 is fixedly connected to one side of the mounting plate 24. A waste recycling port 1 is provided at the lower end of the support plate 21. The telescopic movement of the first cylinder 23 can drive the sliders 22 and the mounting plate 24 to move back and forth, which is convenient for adjusting the position of the entire tin pulling mechanism and facilitating the adjustment of the position of the tin pulling mechanism according to the welding head so that the pulled tin wire can be located below the welding head.

[0022] A waste transfer unit 4 is connected to the side of the first vertical plate 31. The waste transfer unit 4 includes a third cylinder 41 fixed to one side of the first vertical plate 31, a push plate 42 fixedly connected to the telescopic end of the third cylinder 41, a sliding plate 43 slidably connected to the upper end of the third cylinder 41, and a second cylinder gripper 44 fixed to the upper end of the sliding plate 43. The upper end of the push plate 42 is fixedly connected to the lower end of the sliding plate 43. After the welding equipment melts the elongated tin wire and welds it to the workpiece, the third cylinder 41 works and contracts to drive the sliding plate 43 to move forward, making the second cylinder gripper 44 move forward. At this time, the second cylinder 32 is controlled to contract. The contraction of the second cylinder 32 can drive the sliding seat 33 and the first cylinder gripper 35 to move to the left. When the first cylinder gripper 35 moves to the right side of the second cylinder gripper 44, it stops. The second cylinder gripper 44 works to perform a closing action to clamp the tin wire waste remaining in the first cylinder gripper 35. Then the third cylinder 41 works and extends to drive the sliding plate 43 and the first cylinder gripper 35 to move backward, so that the tin wire waste clamped by the first cylinder gripper 35 moves above the waste recycling port 1. The first cylinder gripper 35 cancels the clamping of the tin wire waste, and the tin wire waste falls into the waste recycling port 1. When the third cylinder 41 extends to drive the tin wire waste to move, the second cylinder 32 continues to contract to drive the sliding seat 33 and the first cylinder gripper 35 to move to the left, so that the first cylinder gripper 35 can clamp the tin wire at the fusing point. After the first cylinder gripper 35 clamps the tin wire, the second cylinder 32 extends again and drives the sliding seat 33 and the first cylinder gripper 35 to move to the right, thereby elongating the tin wire and facilitating the welding equipment to perform tin melting and welding.

[0023] On one side of the first vertical plate 31, a feeding unit 5 is fixedly connected. The feeding unit 5 includes a second vertical plate 51 fixedly connected to one side of the first vertical plate 31, a motor 52 fixedly connected to one side of the second vertical plate 51, a driving wheel 54 rotatably connected to one side of the second vertical plate 51 and fixedly connected to the output shaft of the motor 52, a guiding wheel 56 and a winding wheel 53 rotatably connected to one side of the second vertical plate 51, and a wire guiding frame 58 fixedly connected to one side of the second vertical plate 51. On one side of the second vertical plate 51, a pressing wheel 55 is connected, and on one side of the second vertical plate 51, a tension adjusting part 57 is connected. The solder wire is wound around the winding wheel 53. The solder wire sequentially passes through the driving wheel 54, the tension adjusting part 57, the guiding wheel 56 and finally enters the wire guiding frame 58. One end of the solder wire passes out of the wire guiding frame 58. The pressing wheel 55 presses the solder wire against the driving wheel 54, so that the solder wire can be in full contact with the driving wheel 54. When the motor 52 works, it can drive the driving wheel 54 to rotate, thereby providing a force to assist the movement of the solder wire and making the pulling of the solder wire smoother.

[0024] The foregoing has shown and described the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present application, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0025] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Lathi mechanism, including an axial movement unit (2), characterized in that: A soldering tin pulling part (3) is connected to the moving end of the axial moving unit (2). The soldering tin pulling part (3) includes a first vertical plate (31) fixedly connected to the moving end of the axial moving unit (2), a second cylinder (32) and a slide rail (34) fixedly connected to one side of the first vertical plate (31), a slide block (33) fixedly connected to the slide rail (34), and a first cylinder jaw (35) fixedly connected to one side of the slide block (33). The telescopic end of the second cylinder (32) is fixedly connected to one side of the slide block (33). A waste material transfer unit (4) is connected to one side of the first vertical plate (31). The waste material transfer unit (4) includes a third cylinder (41) fixedly connected to one side of the first vertical plate (31), a push plate (42) fixedly connected to the telescopic end of the third cylinder (41), a slide plate (43) slidably connected to the upper end of the third cylinder (41), and a second cylinder jaw (44) fixedly connected to the upper end of the slide plate (43). The upper end of the push plate (42) is fixedly connected to the lower end of the slide plate (43).

2. The draw tin mechanism according to claim 1, wherein: The axial moving unit (2) includes a support plate (21), two guide rails (25) symmetrically fixedly connected to the upper end of the support plate (21), two sliders (22) respectively slidably connected to the two guide rails (25), a mounting plate (24) fixedly connected to the upper ends of the two sliders (22), and a first cylinder (23) fixedly connected to the upper end of the support plate (21). The telescopic end of the first cylinder (23) is fixedly connected to one side of the mounting plate (24).

3. The Lathi mechanism according to claim 2, wherein: A waste material recovery port (1) is provided at the lower end of the support plate (21).

4. The Lathi mechanism according to claim 3, characterized in that: A feeding unit (5) is fixedly connected to one side of the first vertical plate (31). The feeding unit (5) includes a second vertical plate (51) fixedly connected to one side of the first vertical plate (31), a motor (52) fixedly connected to one side of the second vertical plate (51), a driving wheel (54) rotatably connected to one side of the second vertical plate (51) and fixedly connected to the output shaft of the motor (52), a guide wheel (56) and a winding wheel (53) rotatably connected to one side of the second vertical plate (51), and a wire guide frame (58) fixedly connected to one side of the second vertical plate (51).

5. The tin pulling mechanism according to claim 4, characterized in that: A pressure wheel (55) is connected to one side of the second vertical plate (51), and a tension adjusting part (57) is connected to one side of the second vertical plate (51).

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